Futures And Promises
In computer science, future, promise, and delay refer to constructs used for synchronizing in some concurrent programming languages. They describe an object that acts as a proxy for a result that is initially unknown, usually because the computation of its value is yet incomplete.
The term promise was proposed in 1976 by Daniel P. Friedman and David Wise, and Peter Hibbard called it eventual. A somewhat similar concept future was introduced in 1977 in a paper by Henry Baker and Carl Hewitt.
The terms future, promise, and delay are often used interchangeably, although some differences in usage between future and promise are treated below. Setting the value of a future is also called resolving, fulfilling, or binding it.
Read more about Futures And Promises: Implicit Vs Explicit, Promise Pipelining, Read-only Views, Thread-specific Futures, Blocking Vs Non-blocking Semantics, Related Constructs, Relations Between The Expressiveness of Different Forms of Future, Relation To Lazy Evaluation, Semantics of Futures in The Actor Model, History, List of Implementations
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Famous quotes containing the words promises and/or futures:
“Without looking, then, to those extraordinary social influences which are now acting in precisely this direction, but only at what is inevitably doing around us, I think we must regard the land as a commanding and increasing power on the citizen, the sanative and Americanizing influence, which promises to disclose new virtues for ages to come.”
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